Search a number
-
+
1428743030 = 2511131915231
BaseRepresentation
bin101010100101000…
…1110001101110110
310200120102122222112
41111022032031312
510411224234110
6353434531022
750256054401
oct12512161566
93616378875
101428743030
11673540870
1233a596a72
1319a0035a0
14d7a74d38
1585671405
hex5528e376

1428743030 has 64 divisors (see below), whose sum is σ = 3037741056. Its totient is φ = 476976000.

The previous prime is 1428743027. The next prime is 1428743039. The reversal of 1428743030 is 303478241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428743039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 270515 + ... + 275745.

It is an arithmetic number, because the mean of its divisors is an integer number (47464704).

Almost surely, 21428743030 is an apocalyptic number.

1428743030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1428743030 is an abundant number, since it is smaller than the sum of its proper divisors (1608998026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1428743030 is a wasteful number, since it uses less digits than its factorization.

1428743030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5453.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 1428743030 is about 37798.7173062791. The cubic root of 1428743030 is about 1126.2929739786.

The spelling of 1428743030 in words is "one billion, four hundred twenty-eight million, seven hundred forty-three thousand, thirty".

Divisors: 1 2 5 10 11 13 22 26 55 65 110 130 143 191 286 382 715 955 1430 1910 2101 2483 4202 4966 5231 10462 10505 12415 21010 24830 26155 27313 52310 54626 57541 68003 115082 136006 136565 273130 287705 340015 575410 680030 748033 999121 1496066 1998242 3740165 4995605 7480330 9991210 10990331 12988573 21980662 25977146 54951655 64942865 109903310 129885730 142874303 285748606 714371515 1428743030